【Spring Boot】--整合RabbitMQ

 

目录

0、前言

1、消息流程

2、添加依赖

3、添加配置

4、新建配置类

5、新建生产者接口

6、新建生产者实现类

7、新建生产者控制器类

8、测试

---

0、前言

需要已经安装RabbitMQ，并且启动、配置好用户。参考《基于CentOS6.5安装RabbitMQ》，《基于CentOS6.5使用RabbitMQ（二）》，《基于CentOS6.5使用RabbitMQ（三）》。

1、消息流程

生产者，消费者，消息

内部消息：Exchange,Binding,Queues

2、添加依赖

在pom.xml中添加rabbitmq的依赖：

<!-- 引入rabbitmq依赖 -->
<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-amqp</artifactId>
</dependency>

3、添加配置

# rabbitmq配置
mq.rabbit.host=**.**.**.**
mq.rabbit.port=5672
mq.rabbit.virtualHost=/
mq.rabbit.username=admin
mq.rabbit.password=admin

4、新建配置类

RabbitMQConfig.java

/**
 * @Auther: chisj [e-mail]
 * @Date: 2018-11-12 15:35
 * @Description:
 */
@Component
@Slf4j
@ConfigurationProperties
public class RabbitMQConfig {

    @Value("${mq.rabbit.host}")
    public String mqRabbitHost;
    @Value("${mq.rabbit.port}")
    public int mqRabbitPort;
    @Value("${mq.rabbit.username}")
    public String mqRabbitUserName;
    @Value("${mq.rabbit.password}")
    public String mqRabbitPassword;
    @Value("${mq.rabbit.virtualHost}")
    public String mqRabbitVirtualHost;

    public static String EXCHANGE_NAME = "exchange-name";
    public static String QUEUE_NAME = "queue-name";
    public static String ROUTING_KEY = "routing-key";

    @Bean
    public ConnectionFactory connectionFactory() {
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory(this.mqRabbitHost,this.mqRabbitPort);

        connectionFactory.setUsername(this.mqRabbitUserName);
        connectionFactory.setPassword(this.mqRabbitPassword);
        connectionFactory.setVirtualHost(this.mqRabbitVirtualHost);
        connectionFactory.setPublisherConfirms(true);

        return connectionFactory;
    }

    @Bean
    public RabbitTemplate rabbitTemplate() {
        RabbitTemplate template = new RabbitTemplate(connectionFactory());
        return template;
    }

    @Bean
    public DirectExchange defaultExchange() {
        return new DirectExchange(EXCHANGE_NAME);
    }

    @Bean
    public Queue queue() {
        return new Queue(QUEUE_NAME, true);
    }

    @Bean
    public Binding binding() {
        return BindingBuilder.bind(queue()).to(defaultExchange()).with(ROUTING_KEY);
    }

    @Bean
    public SimpleMessageListenerContainer messageContainer() {
        SimpleMessageListenerContainer container = new SimpleMessageListenerContainer(connectionFactory());
        container.setQueues(queue());
        container.setExposeListenerChannel(true);
        container.setMaxConcurrentConsumers(1);
        container.setConcurrentConsumers(1);
        container.setAcknowledgeMode(AcknowledgeMode.MANUAL);
        container.setMessageListener(new ChannelAwareMessageListener() {

            public void onMessage(Message message, com.rabbitmq.client.Channel channel) throws Exception {
                byte[] body = message.getBody();
                log.info("消费端接收到消息 : " + new String(body));
                channel.basicAck(message.getMessageProperties().getDeliveryTag(), false);
            }
        });
        return container;
    }

}

5、新建生产者接口

ProductService.java

/**
 * @Auther: chisj [e-mail]
 * @Date: 2018-11-12 15:37
 * @Description:
 */
public interface ProductService {

    /**
     * 保存
     */
    public int save(String productName);

}

6、新建生产者实现类

ProductServiceImpl.java

/**
 * @Auther: chisj [e-mail]
 * @Date: 2018-11-12 15:39
 * @Description:
 */
@Service("productServiceImpl")
@Slf4j
public class ProductServiceImpl implements ProductService, RabbitTemplate.ConfirmCallback {

    private RabbitTemplate rabbitTemplate;

    public ProductServiceImpl(RabbitTemplate rabbitTemplate){
        this.rabbitTemplate=rabbitTemplate;
        this.rabbitTemplate.setConfirmCallback(this);
    }

    /**
     * 保存
     *
     * @param productName
     */
    @Override
    public int save(String productName) {

        //执行保存
        String uuid = UUID.randomUUID().toString();
        CorrelationData correlationId = new CorrelationData(uuid);
        rabbitTemplate.convertAndSend(RabbitMQConfig.EXCHANGE_NAME, RabbitMQConfig.ROUTING_KEY, productName, correlationId);

        return 0;
    }

    @Override
    public void confirm(CorrelationData correlationData, boolean ack, String cause) {
        log.info("消息id:" + correlationData);
        if (ack) {
            log.info("消息发送确认成功");
        } else {
            log.info("消息发送确认失败:" + cause);

        }
    }
}

7、新建生产者控制器类

ProductController.java

/**
 * @Auther: chisj [e-mail]
 * @Date: 2018-11-12 15:42
 * @Description:
 */
@RestController
@RequestMapping("/Product")
public class ProductController {

    @Resource
    private ProductService productService;

    @RequestMapping("/save")
    public String save(String productName) {

        productService.save(productName);

        return "product save success.";
    }

}

8、测试

在postman中请求{{url}}/Product/save这个端子

查看后台log